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INDONESIA
Jurnal Sylva Lestari
Published by Universitas Lampung
ISSN : 23390913     EISSN : 25495747     DOI : https://doi.org/10.23960
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology
Jurnal Sylva Lestari (JSL) [P-ISSN 2339-0913 | E-ISSN 2549-5747] publishes original research articles related to all aspects of forestry and environmental sciences which includes, but not limited to the following topics: forest and natural resources management, biodiversity conservation and management, wood science and timber technology, agroforestry and social forestry, forest products and services, and socio-economics of natural resources. It is primarily a medium for disseminating original theoretical and experimental researches, as well as technical reviews. This journal issues one volume annually consist of three issues that delivered every January, May, and September.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 315 Documents
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Impact of Mangrove Land Use on the Carbon Stock in an Abandoned Shrimp Pond: A Case Study at Samut Songkhram Campus, Suan Sunandha Rajabhat University, Thailand Wongprom, Jetsada; Inthiraj, Anantachai; Songsin, Niwat; Somporn, Kanokporn; Pianjing, Prisna
Jurnal Sylva Lestari Vol. 13 No. 1 (2025): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i1.1074

Abstract

Changes in land use within coastal areas have significantly impacted the carbon stock of mangrove forests. This study examined three different land-use types including the abandonment of shrimp ponds characterized as restored mangrove forests (RMF), logged Avicennia marina (LAM) stands, and abandoned shrimp ponds (ASP) on the carbon stock in plant and soil. Eight experimental plots, each measuring 20 m x 20 m, were established in the RMF and LAM to assess the forest structure. The diameter and height of mangrove trees were measured, and both the above and belowground biomass were estimated. Three soil samples were collected randomly from each site at four different depths (0–15 cm, 15–30 cm, 30–50 cm, and 50–100 cm) to analyze the soil characteristics. Bulk density and carbon concentration were then determined from these samples. The Tukey test estimated and statistically analyzed vegetation, soil, and carbon stocks. The results indicate that the forest structure and biodiversity in RMF were higher than in LAM. Additionally, vegetation biomass and carbon stock in RMF exceeded the values estimated for LAM. The soil carbon stock at 0–100 cm depths across RMF, LAM, and ASP was similar, ranging from 204.52 to 220.20 t.C.ha-1. Nonetheless, the largest ecosystem carbon stock was estimated for RMF (306.52 t.C.ha-1), demonstrating the influence of land-use patterns on ecosystem carbon storage. According to the results, it might take longer for the ecosystem carbon in the abandoned shrimp pond in ASP to recover than it would in RMF and LAM. However, mangrove restoration in abandoned shrimp ponds is crucial to improve the forest structure, encourage ecological advantages, and accelerate carbon stock recovery. Keywords: abandoned shrimp pond, carbon stock, land use, mangrove forest, Samut Songkhram campus
Enhancing Afforestation Success: Seedling Survival and Growth in Relation to Planting Pit Digging and Vegetation Control in Rashaya Al-Wadi, Lebanon Saleh, Mohammad; Baydoun, Safaa; Mostafa, Wael; Salman, Hisham; Borjac, Jamilah
Jurnal Sylva Lestari Vol. 13 No. 1 (2025): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i1.1081

Abstract

Afforestation is vital for environmental conservation but is hindered in arid and semi-arid regions by water scarcity and competitive vegetation. This study evaluates three pit-digging methods (traditional pits, hoedad, and auger tools) and three vegetation control strategies (mulching, mowing, and herbicide) in Rashaya al-Wadi, Lebanon. Six tree species (Quercus calliprinos, Quercus infectoria, Pistacia palaestina, Pinus pinea, Pinus halepensis, and Cedrus libani) were assessed using a randomized complete block design with 12 treatment combinations replicated across four blocks. Seedlings were planted with uniform spacing, and vegetation controls were applied once at planting. Survival and growth, measured biannually over two years as height and root collar diameter (RCD), were analyzed using ANOVA. Survival was highest with mulch (51%), followed by herbicide (35%), and lowest with mowing (1.2%) and control (1.4%). Height growth ranged from 6.75–30.44 cm with mulch, 3.72–36.89 cm with herbicide, 1.92–5.25 cm with mowing, and 1.81–6.08 cm with control. RCD growth followed similar trends. Traditional pits achieved the highest survival, while the hoedad tool had the lowest. Findings demonstrate that mulching with traditional pits enhances afforestation success and offers a sustainable solution for semi-arid regions. Further research is needed to refine methods for diverse sites. Keywords: afforestation success, competitive vegetation, environmental conservation, pit-digging methods, seedling survival
Conservation Challenges for Endangered Mammals: Research Gaps and Collaboration Needs Based on Stakeholder Bibliometric Analysis Novriyanti; Buchori, Damayanti; Masy'ud, Burhanuddin; Soekmadi, Rinekso
Jurnal Sylva Lestari Vol. 13 No. 1 (2025): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i1.1096

Abstract

The global focus on endangered mammals highlights urgent, effective conservation strategies addressing habitat destruction, land-use changes, poaching, agricultural expansion, and encroachment. This study aims to identify research gaps in stakeholder engagement, map research trends and assess leading contributors of endangered mammal conservation, and explore opportunities for international collaboration for biodiversity conservation. This study was done using bibliometric analysis of 716 initial documents that were further selected to 85 publications based on PRISMA guidelines in R-Studio tools. This review highlights the fact that there is a limited focus on stakeholder engagement within mammal conservation research. Countries with high biodiversity, such as Indonesia, Mexico, and Brazil, contribute less to the scientific literature than high-income countries. This imbalance suggests the need for equitable research funding and expanded collaboration. Strengthening partnerships with research-intensive countries could increase publication output and knowledge sharing. Furthermore, regional cooperation with other original countries with similarly endangered species, like Malaysia and Thailand, is essential for improving research quality and optimizing resource exchange. The findings further highlight the importance of sustainable conservation practices and stakeholder engagement in effectively fostering the protection of endangered mammal species. Keywords: conservation governance, endangered species, research partnership, stakeholder engagement, systematic literature review
Field Evaluation of Biochar Application on the Early Growth of Falcataria moluccana: Effects of Pyrolysis Temperatures and Biochar Application Rates Wijaya, Bangun Adi; Riniarti, Melya; Hidayat, Wahyu; Prasetia, Hendra; Yoo, Jiho; Park, Byung Bae
Jurnal Sylva Lestari Vol. 13 No. 1 (2025): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i1.1134

Abstract

Faltacaria moluccana at its early plantation, is devastated by heat and water stress due to current global climate change. Production forests in Indonesia suggested to use biochar to enhance the durability of early growth F. moluccana in the field. Empty fruit bunches (EFB), a gigantic abundant waste material in Indonesia, pose its potential as biochar feedstock. This study aims to evaluate the effects of EFB biochar on the growth of F. moluccana for one year in a field setting. The experiment used two biochar application rates (25 and 50 tons/ha) and biochar produced at two pyrolysis temperatures (400°C and 600°C). Climatic factors (rainfall and average temperature) were monitored to assess how biochar interacted with field conditions to influence the growth of F. moluccana. EFB biochar increased height and diameter increment by up to 25% and 42%, respectively, compared to control after one year. While pyrolysis temperatures show no impact on growth, biochar application rates of 25 and 50 tons/ha significantly boost diameter increments by 36% and 42%, respectively, compared to controls, without affecting height. Biochar also improves monthly growth increments under water and heat stress. EFB biochar optimizes growth under current climate conditions in Indonesia and mitigates the negative effects of extreme temperature fluctuations. Keywords: biochar, early plant growth, empty fruit bunch, Faltacaria moluccana, field experiment
Gall Rust Disease Dynamics in Falcataria falcata L. Across Elevations in Agusan del Norte, Philippines Tering, Rece Ruby Gera; Tulod, Adrian Monteroso; Branzuela, Nympha Ellarina; Batiancela, Marvin Arroyo; Tutor, Rosalinda Palo; Casas, Jupiter Viovicente; Rojo, Mark Jun Atchueta; Gilbero, Dennis Morgia
Jurnal Sylva Lestari Vol. 13 No. 1 (2025): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i1.1142

Abstract

Gall rust disease poses a significant threat to falcata (Falcataria falcata L.), particularly in different elevation ranges. This study aimed to assess the gall rust disease incidence and severity at low (0–200 masl), moderate (201–400 masl), and high (401–600 masl) elevations. Results showed a significant correlation between gall rust disease incidence and severity and elevation based on Spearman rho correlation analysis. Higher elevations were associated with increased gall rust disease incidence and severity. This suggests that environmental conditions specific to these elevations may aggravate gall rust development. Based on the findings, temperature and relative humidity, which vary with elevation, play a role in gall rust disease incidence. Conversely, light intensity significantly influences gall rust disease severity across elevation ranges. These findings signify the importance of elevation-related factors in disease management strategies in falcata plantations. By identifying the relationship between gall rust disease and elevation, this research provides insightful information that can be used to improve disease management strategies and create focused control measures. The results provide an in-depth understanding of gall rust disease dynamics and offer recommendations for reducing its impact. Keywords: disease incidence, disease severity, elevation, Falcataria falcata L., gall rust
Assessing Water Absorption and Root-Shoot Dynamics of Native Philippine Tree Species for Flood Mitigation and Environmental Management Goyo, Shiella Lynn Dali-on; Corbita, Victor Lobrigas; Acog, Glendel Cotejo; Balaba, Diana Rose; Estrada, Jessa Joy Tomoc; Mercado, Joel Andig
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i2.1088

Abstract

Over the years, excessive stormwater run-off has been a primary environmental concern in almost every part of the world. This study aimed to assess the water absorption capacity and root-shoot ratio of the three native species, namely Vitex parviflora, Pterocarpus indicus, and Diospyrus discolor, in the Philippines. The study used an experimental design with a total number of 63 experimental seedlings. After over a month of transplanting, the researchers collected the data by uprooting 1 sample per box and recording its weight. The uprooted samples were then submerged into a container with enough water, and the plant waited until it absorbed enough water before being weighed again. Root and shoot ratio were also computed using its dry weight. The results showed a significant difference in terms of absorption rate between the three native species. V. parviflora garnered the highest water absorption rate, followed by P. indicus and D. discolor. Root-shoot ratio was highest in D. discolor while lowest in V. parviflora. No significant correlation was found between root and shoot biomass regarding water absorption capacity. These findings highlight the importance of selecting specific tree species for environmental management and flood mitigation efforts in the Philippines. Keywords: biomass, native species, stormwater run-off, water absorption
Selecting a Suitable Synthesis of Industrial Hot Melt Nanostructured Polyurethane Adhesives for the Enhanced Bonding of MDF and PVC Veneers - A Review Khorshidi, Fatemeh Hassani; Saadatabadi, Ahmad Ramazani; Pizzi, Antonio; Fatriasari, Widya
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i2.1132

Abstract

This review focuses on the synthesis and application of industrial hot-melt nanostructured polyurethane adhesives (HMPUAs) used for enhancing the bonding of medium-density fiberboard (MDF) with polyvinyl chloride (PVC) veneers. The use of PVC veneers has been identified as an effective approach to protect wood composite products, particularly MDF, due to its resistance to moisture, environmental conditions, and cost-effectiveness. However, achieving strong adhesion between PVC and MDF remains challenging due to differences in their chemical and structural properties. This study compares various synthesis methods of polyurethane adhesives, emphasizing the prepolymer method as the most efficient approach for producing high-performance HMPUAs. Key challenges include optimizing the isocyanate to hydroxyl group ratio (NCO/OH), selecting appropriate polyols, and incorporating suitable additives. The effects of nanoparticles, including nanosilica, nanolignin, phosphorus, nitrogen compounds, mica particles, and aluminum trihydrate, on the mechanical and thermal properties of polyurethane adhesives are thoroughly discussed. Furthermore, the challenges of achieving consistent adhesive performance, compatibility, and durability under varying environmental conditions are addressed. The findings of this review provide essential insights into improving the synthesis of one-component HMPUAs and enhancing their applicability in MDF-PVC veneer bonding. Keywords: additives, hot melt adhesive, medium-density fiberboard, polyurethane, reactive resin
Model Development of the Forest Quality Assessment using Second-Order Confirmatory Factor Analysis Zulkarnain; Saleh, Muhammad Buce; Kuncahyo, Budi; Tiryana, Tatang; Puspaningsih, Nining
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i2.1064

Abstract

Forest quality plays a crucial role in sustaining the functions of forest ecosystems. This study aims to develop a valid and reliable model for assessing forest quality through six dimensions: forest productivity, forest structure, soil factors, climatic conditions, topography, and anthropogenic factors. Vegetation data were collected from 138 sample plots using a stratified purposive sampling method. Soil, topography, and climate data were obtained from the SoilGrids, DEMNAS, CHIRPS, and NASA POWER websites, respectively. Anthropogenic data were derived from Sentinel-2 imagery. The forest quality assessment model was developed using confirmatory factor analysis (CFA). Results showed that forest structure, forest productivity, soil, and anthropogenic factors are valid and reliable in assessing forest quality, with forest productivity as the primary determinant. However, topographic and climatic factors were not valid for assessing forest quality due to the low variation in topographic and climatic data within the study area. The goodness-of-fit model evaluation indicated a good fit based on criteria including the chi-square, RMSEA, GFI, SRMR, AGFI, TLI, CFI, NFI, and CMIN/DF. Based on the relative weights of each dimension and indicator and using linear additive equations, a mathematical equation for the forest quality index is derived, providing a practical framework for assessing forest quality at the landscape scale, particularly in heterogeneous tropical ecosystems. Keywords: confirmatory factor analysis, forest quality assessment, Rawa Aopa Watumohai National Park, sustainable forest management
Characteristics of Cold-Setting Adhesive Derived from Waste Styrofoam for Bonding Laminated Gmelina (Gmelina arborea) Wood Karliati, Tati; Dungani, Rudi; Hadiyane, Anne; Hidayat, Wahyu; Lubis, Muhammad Adly Rahandi
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i2.1080

Abstract

Developing cold-setting adhesives derived from waste styrofoam (WS) of expanded polystyrene foam for laminated gmelina wood involves innovative recycling of WS into functional adhesives. As a type of thermoplastic polymer, WS can be used as an adhesive at room temperature. In this study, WS was functionalized into cold-setting adhesives through dissolution and cross-linking reaction with methylene diphenyl diisocyanate (MDI) at a concentration of 40% w/v at 60°C. The mixture was then stirred at 200 rpm for 30 minutes. The adhesive is characterized by its ability to be set at room temperature, offering environmental benefits and practical applications in wood lamination. Solids content, gelation time, viscosity, cohesion strength, functional group analysis, morphological features, and curing temperature analysis were performed to characterize the cold-setting adhesives. The WS-MDI-40% had 62.4% solids content, 906.8 mPa.s viscosity, 182.3 Pa cohesion strength, and 197.8 minutes of gelation time at room temperature. The adhesion performance was evaluated in laminated wood using gmelina wood at glue spread rates of 250 and 300 g/m2 and cold-pressed at various durations. The block shear strength value of laminated wood bonded with WS-MDI-40% at 300 g/m2 and cold-pressed for 24 hours was higher than that of other samples, reaching 8.2 MPa, which met the Japanese Agricultural Standard (JAS No. 234) for glued laminated timber, exceeding the minimum requirement of 5.4 MPa. Fourier transform infrared (FTIR) spectroscopy revealed that the cold-setting WS-MDI-40% were cross-linked via urethane linkages (R–NH–COO–R). The free –N=C=O groups could react with the –OH groups of gmelina wood to produce laminated wood during cold-pressing. This study suggested a recycling alternative of WS into a cold-setting wood adhesive for laminated wood, which can be utilized in interior applications. Keywords: adhesive, block shear strength, cohesion strength, cold-setting, gmelina wood
Climate Change Mitigation Towards the Lens of Urban Heat Island under Urban Forest Development Rushayati, Siti Badriyah; Nur Annisa, Namira; Setiawan, Yudi; Condro, Aryo Adhi
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i2.1090

Abstract

Rapid urbanization and land-use change in Indonesian cities have led to urban heat islands, exacerbating air pollution. This situation elevates sensible heat, thereby compromising human thermal comfort. Palu City, situated in Central Sulawesi Province, Indonesia, has experienced significant urban heat island effects in recent decades. To mitigate this issue, increased development of green open spaces is necessary. This study prioritizes urban forest development in urban areas using a spatial analysis approach. We employ a weighting and scoring system based on vegetation indices, land cover, and air temperature parameters. Our study identified three priority areas with total areas of approximately 6,741 ha, 2,746 ha, and 20,695 ha for priorities 1, 2, and 3, respectively. This study prioritizes areas with high temperatures, low vegetation cover, and bare land for urban forest development. To effectively implement the proposed urban forest development plan, this study also highlights recommendations to create a more sustainable, resilient, and livable urban environment. Keywords: climate change, Landsat-8, micro-climate, remote sensing, urban forest, urban heat island

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